Platelet-rich plasma (PRP) to treat upper patellar tendinopathies

Platelet-Rich Plasma (PRP)

to treat upper patellar tendinopathies

Kaux JF, Croisier JL, Simoni P, Brabant G, Lapraille S, Lonneux V, Noël D,

Rodriguez de la Cruz C, Collette J, Le Goff C, Gothot A, Crielaard JM. Universiy of Liège, Belgium

Introduction

• Often rebel to conservative treatments

• Positive effects of platelets on the healing process of tendons recently demonstrated

• PRP : rich in growth factors

• Local infiltration of PRP: potentiallity to enhance the tendon healing process

• From autologous blood

• 3 sedimentation phases

• Upper part of «buffy coat»

Aim of our study

• To investigate the effect of 1 injection of PRP in patients suffering from chronic jumper’s knee

Methods

• 18 patients with chronic jumper’s knee, rebel to conservative treatment

• Clinical examination + algometer

• Functional assessments (isokinetic and opto-jump)

• Imagery (US and MRI)

Methods

• PRP obtained with apharesis system (COM.TEC)

• Infiltration of 6mL

• No local anaesthic

• 48h rest-time

• No NSAIs

• After 1 week ➙ 5 weeks of submaximal eccentric reeducation (3 times a week)

VAS

Algometer

IKDC

VISA

Isokinetic

Patient 1 Patient 3 Patient 5 Patient 7 Patient 9 Patient 11 Patient 13 Patient 15 Patient 17 Moyennes

Newt

on mèt

Imagery

• No significant difference in US and MRI

Discussion

• 1 injection of PRP in situ ➙ improvement of jumper’s knee (6 weeks)

• ➘ _pain

• No significant difference for functional performances nor imaging

Conclusion

• PRP infiltration can relieve pain in the case of rebel jumper’s knee in the short term

Thank you for your attention !

jfkaux@chu.ulg.ac.be